Trolley-harp.



PATENTBD APR 28, 1908.

TROLLEY HARP; 7

APPLICATION Hum MAY 23. 1907.

PERCY C. BLIVEN, OF DANIELSON, CONNECTICUT.

TROLLEY-HARP.

Specification of Letters Patent.

Patented April 28, 1908.

Application filed May 23, 1907. Serial No. 375,287.

To all whom it may concern:

Be it known that I, PERCY C. BLIVEN, a citizen of the United States ofAmerica, residing at Danielson, in the county of Windham and State ofConnecticut, have invented new and useful Improvements in Trolley-Harps, of which the following is a specification.

This invention relates to trolley harps, and one of the principalobjects of the same is to dispense with the usual bushing for thetrolley wheel and to provide means whereby the wheel may be quicklydetached from the harp.

Another object of the invention is to provide a trolley harp of simpleconstruction to be used in connection with a trolley wheel having anaxle rigidly secured thereto, bearings being provided in the harp forthe ends of the axle, and means being provided for lubricating the axle.

These and other objects may be attained by means of the constructionillustrated in the accompanying drawing, in which:

Figure 1 is a side elevation of a trolley harp made in accordance withmy invention. Fig. 2 is a sectional view through the wheel and harp inline with the axle of the wheel. Fig. 3 is a sectional view takenlongitudinally through the harp, and the hinged member of the harp beingshown opened out to admit the axle of the trolley Wheel.

Referring to the drawing for a more particular description of myinvention, the numeral 1 designates a trolley wheel to which is rigidlyconnected an axle 2 comprising a cylindrical, steel rod of equaldiameter from end to end, and the opposite ends of said axle projectingbeyond the hub of the trolley wheel at opposite sides thereof.

The trolley harp comprises the stationary member 3, and the pivotedmember 4, said stationary member being formed on or con nected to theupper end of the trolley pole 5, said stationary member comprising twospaced sections having concaved inner sides 6 and rounded recesses 7 forthe axle bearings. Pivotally connected to the inner walls of the rigidmember 3 is a stirrup or yoke 8, said stirrup being pivoted upon the pin9 and provided with spaced arms 10 and an intermediate notch or bearing11 for the ends of the axle 2.- Formed in the stationary member 3 is arecess 12 provided with a trans-- verse pin pole 13.

The pivoted member 4 of the harp is pivoted at 14 to the stationarymember, and is provided with a notch 15 corresponding to the recess 7 inthe stationary member 3. A lug 16 is formed on the inner side of thepivoted member 4, said lug being provided with a pin opening 17, andsaid lug adapted to be brought down into the recess 12, and said twomembers being connected by means of a removable pin 18 which extendsthrough the pin holes 13 and 17.

Bearing caps 19 provided with an exterior annular shoulder 20 and aninterior annular flange 21 are fitted to the opposite ends of the axle2, said bearing fittingin the recesses 7 and. the notches 15 in themembers 3 and 4 of the harp. Washers 22 are placed upon the axle 2between the yoke 8 and the hub of the trolley wheel. A suitablelubricating packing 23 is placed in the bearing caps 19 and oil holes 24are formed in the pivoted members 4, said oil holes, communicatingthrough oil ducts 25 with the packing 23 at the ends of the axle.'

From the foregoing it will be obvious that I dispense with the usualbushing which is the source of continual annoyance in trolley Wheels forthe reason that the bushings wear away very rapidly, and thus preventthe proper operation of the trolley wheel. Fur thermore, by means of myinvention a trolley wheel may be readily removed from the harp forrepairs or renewals by removing the pin 18 and throwing up the member 4.

My invention is of simple construction, is composed of comparatively fewparts, is durable and efficient in use and any style of trolley wheelcan be readily fitted thereto.

Having thus described the invention, what I claim is:

1. A trolley harp comprising a stationary member having spaced arms, amember pivotally connected to the stationary member at the outer endthereof, yokes pivoted to the stationary member, bearing caps connectedto said member, in combination with a trolley wheel having a rigidlyconnected axle, the ends of which are journaled in the bearing ca s.

2 A trolley harp comprising a stationary member and a pivoted member, aremovable pin for holding said two members in position,

bearing caps connected between said two lubricant may be fed to thelubricating packmembers, yokes pivoted to the stationary ing. 10 memberand provided with spaced arms to In testimony whereof, I a'ffix mysignature engage the axle of the trolley wheel, in comin presence of twowitnesses.

5 bination with a trolley wheel having a rigidly l PERCY C. BLIVEN.

connected aXle, the ends of which are jourl/Vitnesses: naled in thebearing caps, lubricating packing l JAMES M. PAINE, in said bearingcaps, and means whereby a MAUDE A. PHILLIPS.

